To supersede the requirements of Sentences 3.4.3.2.(8) and 3.4.3.3.(1), and permit a reduction in the width of exits resulting from handrails and construction below handrails if the width reduction is limited to a small reduction.
This is to limit the probability that an exit will be substantially reduced in width, which could lead to emergency responders being delayed in gaining access to floor areas in a fire situation, which could lead to delays or ineffectiveness in emergency response operations, which could lead to the spread of fire, which could lead to damage to the building.